servlet+jdbc+mysql+ajax的注册，登陆，修改，查询项目

jsp实现servlet+jdbc+mysql+ajax的注册，登陆，修改，查询的简单demo。对于学习servlet jdbc ajax mysql 有一定的帮助。

package org.jinshi366.dao;

import java.math.BigDecimal;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import org.jinshi366.utils.DBConnection;

public class UserDao {

	Connection conn = null ; 
	PreparedStatement ps = null ;
	Statement st ; 
	ResultSet rs = null ; 
	//注册用户

	/**
	 * @title: register
	 * @Description : 添加一个用户 并在 userinfo 添加用户信息
	 * @param name
	 * @param password : void
	 * @auther : 
	 * @2016年10月4日 @下午5:30:55
	 */
	public void register（String name  String password）{
		conn = DBConnection.getDBConnection（） ; 
		String sql = “insert into user （name  password） values （??）“ ; 
		String userinfosql = “insert into userinfo （username  income） 

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       1604  2016-10-04 19:18  servlet-mysql-demo\practice.sql

     文件        315  2016-10-04 19:32  servlet-mysql-demo\readme.txt

     文件       1019  2016-09-28 12:24  servlet-mysql-demo\servlet_mysql_demo\.classpath

     文件       1051  2016-09-27 19:09  servlet-mysql-demo\servlet_mysql_demo\.project

     文件        567  2016-09-27 19:09  servlet-mysql-demo\servlet_mysql_demo\.settings\.jsdtscope

     文件        364  2016-09-27 19:09  servlet-mysql-demo\servlet_mysql_demo\.settings\org.eclipse.jdt.core.prefs

     文件        506  2016-09-27 19:09  servlet-mysql-demo\servlet_mysql_demo\.settings\org.eclipse.wst.common.component

     文件        349  2016-09-27 19:09  servlet-mysql-demo\servlet_mysql_demo\.settings\org.eclipse.wst.common.project.facet.core.xml

     文件         49  2016-09-27 19:09  servlet-mysql-demo\servlet_mysql_demo\.settings\org.eclipse.wst.jsdt.ui.superType.container

     文件          6  2016-09-27 19:09  servlet-mysql-demo\servlet_mysql_demo\.settings\org.eclipse.wst.jsdt.ui.superType.name

     文件       3606  2016-10-04 19:03  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\dao\UserDao.class

     文件       1787  2016-10-04 16:13  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\servlet\AddMoneyServlet.class

     文件       2249  2016-10-04 18:24  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\servlet\LoginServlet.class

     文件       1702  2016-09-29 19:03  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\servlet\QueryMoneyServlet.class

     文件       1881  2016-10-04 19:10  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\servlet\RegisterServlet.class

     文件       1812  2016-10-04 15:57  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\servlet\SubtractMoneyServlet.class

     文件        504  2016-09-29 14:43  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\test\DBTest.class

     文件        605  2016-09-29 14:43  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\test\LoginTest.class

     文件        608  2016-09-29 14:43  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\test\RegisterTest.class

     文件       2038  2016-09-29 14:43  servlet-mysql-demo\servlet_mysql_demo\build\classes\org\jinshi366\utils\DBConnection.class

     文件       3829  2016-10-04 19:03  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\dao\UserDao.java

     文件       1115  2016-10-04 16:13  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\servlet\AddMoneyServlet.java

     文件       1530  2016-10-04 18:24  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\servlet\LoginServlet.java

     文件       1154  2016-09-29 19:03  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\servlet\QueryMoneyServlet.java

     文件       1392  2016-10-04 19:10  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\servlet\RegisterServlet.java

     文件       1140  2016-10-04 15:57  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\servlet\SubtractMoneyServlet.java

     文件        274  2016-09-28 13:22  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\test\DBTest.java

     文件        309  2016-09-28 19:31  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\test\LoginTest.java

     文件        297  2016-09-28 19:28  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\test\RegisterTest.java

     文件       1432  2016-09-28 15:03  servlet-mysql-demo\servlet_mysql_demo\src\org\jinshi366\utils\DBConnection.java

............此处省略42个文件信息